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Zinaida [17]
4 years ago
14

The sum of 4 consecutive integers is -18. what is the greatest of these integers?

Mathematics
1 answer:
Mashcka [7]4 years ago
3 0
Okay. What I know so far is that the integers will all be negative. We don't have to count too high to do this. So for this, it's like pick any four numbers. Or you could divide 18 by half and find the addition problems that you know would equal 9. What I see is that -3 + -4 + -5 + -6 = -18. There are all four consecutive integers. The trend is that you can draw a line tracing to the number of the opposite side of the question and you can see they each equal nine. Most people would be tricked and say 6, because they ignore the negative symbol, but here's the catch. The lower the number in front of the negative sign, the greater it is. So in this case, the lowest number in front of the negative symbol is 3, which would also mean that -3 is the highest when it comes to all of these numbers. So -3 is the greatest out of the four consecutive integers.
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MatroZZZ [7]
Area = *Longer Side* x *Shorter side*

44 = (x + 7) * x
44 = x^2 + 7x
0 = x^2 + 7x - 44
0 = (x + 11)(x - 4)
0 = x + 11 OR 0 = x - 4
x = -11*impossible* OR x = 4
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8 0
3 years ago
In a survey of sleeping habits, 8400 adults were selected randomly and contacted by telephone. Based on a medical association's
Andreas93 [3]

Answer:

d. None of the above.

Step-by-step explanation:

<em>a. By the law of large numbers, it would again be 46%. </em>

FALSE. This proportion (46%) is a sample statistic, that can or can not be repeated in another sample.

<em>b. By the law of large numbers, the smaller (second) survey will certainly produce a sample proportion farther from the true population proportion than the larger (first) survey. </em>

FALSE. Smaller samples will produce wider confidence intervals for the estimation of the population proportion, but larger samples does not necessarily gives us better point estimations of the true proportion. A small sample can be closer to the true proportion than a large sample, although is less probable.

<em>c. The proportion computed from the sample of 5000 people would be more accurate because smaller samples tend to be more homogeneous than larger samples. </em>

FALSE. There is no evidence to claim that smaller samples are more homogeneous.

<em>d. None of the above.</em> TRUE

6 0
3 years ago
How do i find the solution to x+y= -2 y=x+2
olga2289 [7]

Answer:

x = -2 and y = 0

Explanation:

You just put the value of one variable in terms of the other in one of the two equations. Then, solve it and BOOM you'll have your solution.

x + y = -2 ........... (a)

y = x + 2 ............ (b)

Put (b) in (a),

x + (x + 2) = -2

2x = -4 => x = -2

Put x = -2 in (b),

y = x + 2 = -2+2 = 0

Thus, x=-2 and y=0

4 0
3 years ago
HELP ME PLEASEEEEE i need this now
OleMash [197]

Answer:

195 yd^2

Step-by-step explanation:

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p = 7.5 + 7.5 = 15

q = 13 + 13 = 26

A = \frac{26*15}{2}

A = 195

5 0
3 years ago
Read 2 more answers
Find the 43rd term of the sequence 13.1,3.1,-6.9,-16.9,
lilavasa [31]
<span> Arithmetic sequence.
a</span>₁ = 13.1; a₂ = 3.1

d = a₂ - a₁ = 3.1 - 13.1 = -10
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Answer: -406.9

4 0
4 years ago
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